This supports SDEI_PE_{MASK, UNMASK} hypercall. They are used by
the guest to stop or start receiving SDEI event on the specified
vCPU.
Signed-off-by: Gavin Shan <gshan@xxxxxxxxxx>
---
arch/arm64/kvm/sdei.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/arch/arm64/kvm/sdei.c b/arch/arm64/kvm/sdei.c
index db82ea441eae..b2a916724cfa 100644
--- a/arch/arm64/kvm/sdei.c
+++ b/arch/arm64/kvm/sdei.c
@@ -625,6 +625,18 @@ static unsigned long hypercall_route(struct kvm_vcpu *vcpu)
return ret;
}
+static unsigned long hypercall_mask(struct kvm_vcpu *vcpu, bool mask)
+{
+ struct kvm_sdei_vcpu *vsdei = vcpu->arch.sdei;
+ unsigned long ret = SDEI_SUCCESS;
+
+ spin_lock(&vsdei->lock);
+ vsdei->state.masked = mask ? 1 : 0;
+ spin_unlock(&vsdei->lock);
+
+ return ret;
+}
+
int kvm_sdei_hypercall(struct kvm_vcpu *vcpu)
{
struct kvm *kvm = vcpu->kvm;
@@ -680,7 +692,11 @@ int kvm_sdei_hypercall(struct kvm_vcpu *vcpu)
ret = hypercall_route(vcpu);
break;
case SDEI_1_0_FN_SDEI_PE_MASK:
+ ret = hypercall_mask(vcpu, true);
+ break;
case SDEI_1_0_FN_SDEI_PE_UNMASK:
+ ret = hypercall_mask(vcpu, false);
+ break;
case SDEI_1_0_FN_SDEI_INTERRUPT_BIND:
case SDEI_1_0_FN_SDEI_INTERRUPT_RELEASE:
case SDEI_1_1_FN_SDEI_EVENT_SIGNAL:
--
2.23.0
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